Numbers 2:17-19

Young's Literal Translation

¹⁷ And the tent of meeting -- the camp of the Levites -- hath journeyed in the midst of the camps; as they encamp so they journey, each at his station by their standards.

¹⁸ The standard of the camp of Ephraim, by their hosts, [is] westward; and the prince of the sons of Ephraim [is] Elishama son of Ammihud;

¹⁹ and his host, and their numbered ones, [are] forty thousand and five hundred.